CN206617340U - Independent pump head vavuum pump - Google Patents
Independent pump head vavuum pump Download PDFInfo
- Publication number
- CN206617340U CN206617340U CN201720334595.3U CN201720334595U CN206617340U CN 206617340 U CN206617340 U CN 206617340U CN 201720334595 U CN201720334595 U CN 201720334595U CN 206617340 U CN206617340 U CN 206617340U
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- China
- Prior art keywords
- vacuum
- diffuser
- impeller
- fixedly connected
- pump head
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- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Independent pump head vavuum pump, belong to paper making vacuum system technical field, it is characterized in that described air inlet tube cavity is pyramidal structure and is fixedly connected on the outside of diffuser, the quiet wheel cap is fixedly connected on the inside of diffuser and its inner side coordinates with impeller outer edge, the diffuser is fixedly connected with spiral case, and the closure is located at impeller dorsal part and is fixedly connected on spiral case；This patent has the features such as simple in construction, aspiration vacuum level is high, flow is big, floor space is small, 15kPa to 65kPa vacuum can be formed applied to paper making vacuum system, frequently disconnected paper phenomenon occurs caused by avoiding vacuum unstable, there can be less impeller size under the conditions of same vacuum and impeller linear velocity, the use cost of papermaking user's huge vacuum installations can be reduced simultaneously, the safe operation of turbine vacuum pump is also beneficial to.
Description
Technical field
The utility model belongs to paper making vacuum system technical field, and in particular to a kind of independent pump head vavuum pump.
Background technology
Common-the 15kPa of paper machine vacuum system to -65kPa vacuum, in each vacuum suction point, wet end suction box, hair
Cloth etc. inhales the vacuum that point is relatively commonly middle rough vacuum level, and couch roll high vacuum case, pressure roller high vacuum case etc. inhale point one
As need -45 to -65kPa condition of high vacuum degree level vacuum.The suction of the relatively conventional paper making vacuum system of turbine vacuum pump
Technique, Dominant Facies are when obvious.But with the continuous improvement of papermaking enterprise yield, speed, big flow, height are proposed to turbine vacuum pump
The requirement of vacuum, especially when tolerance needs to be more than or equal to 400m3/min, the external diameter of impeller is very big, and the linear velocity of impeller is
Supersonic speed.Generally, the linear velocity of turbine is more than 340m/s, that is, Mach number is when being more than or equal to 1, referred to as Supersonic
Shock wave phenomena occurs in fast situation, now turbine operating in the gas flow, forms wave resistance loss, aerodynamic loss is increased severely, cause
Rotor oscillation geometry level increases, and conventional vacuum pump needs two impellers to aspirate -45kPa to -65kPa vacuum in addition,
Vibration equipment is more exacerbated, applies and then occurs that vacuum is unstable, paper phenomenon of frequently breaking in paper making vacuum system.
Utility model content
The utility model is intended to provide that a kind of linear velocity is relatively low, rotating speed is suitable, single-stage by optimizing the design of impeller width-diameter ratio
Impeller can meet the independent pump head vacuum pump technology scheme of higher vacuum, to overcome problems of the prior art.
Described independent pump head vavuum pump, including the motor and speedup part that connection coordinates, motor pass through connection
The low speed end of axle device speedup part（7b）Drive connection, it is characterised in that the speed end cantilever of speedup part install by air inlet pipe,
The independent pump head that spiral case, diffuser, quiet wheel cap, impeller, closure are constituted.
Described independent pump head vavuum pump, it is characterised in that described air inlet tube cavity is pyramidal structure and is fixedly connected on
On the outside of diffuser, the quiet wheel cap is fixedly connected on the inside of diffuser and its inner side coordinates with impeller outer edge, the diffuser with
Spiral case is fixedly connected, and the closure is located at impeller dorsal part and is fixedly connected on spiral case.
Described independent pump head vavuum pump, it is characterised in that the impeller uses three-dimensional flow and semi-open type design structure,
Only configured to be single in the independent pump head, and impeller linear velocity is less than 300m/s.
Described independent pump head vavuum pump, it is characterised in that the shape and structure of the diffuser using leaf diffuser structure or
Vaneless diffuser structure.
Described independent pump head vavuum pump is novel in design, reasonable idea, with simple in construction, aspiration vacuum level is high, flow
Greatly, the features such as floor space is small, can form -15kPa to -65kPa vacuum applied to paper making vacuum system, it is to avoid vacuum
Frequently disconnected paper phenomenon occurs caused by unstable, can have less impeller under the conditions of same vacuum and impeller linear velocity
Size, while the use cost of papermaking user's huge vacuum installations can be reduced, is also beneficial to the safe operation of turbine vacuum pump.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
In figure：1- air inlet pipe, 2- spiral cases, 3- diffusers, the quiet wheel caps of 4-, 5- impellers, 6- closures, 7- speedups
Part, 7a- speed ends, 7b- low speed end, 8- shaft couplings, 9- motors.
Embodiment
In conjunction with Figure of description, embodiment of the present utility model is described in detail：
Independent pump head vavuum pump as shown is, motor 9 drives the low speed end 7b of speedup part 7 by shaft coupling 8,
The speed end 7a cantilevers of speedup part 7 are installed and are made up of air inlet pipe 1, spiral case 2, diffuser 3, quiet wheel cap 4, impeller 5, closure 6
Independent pump head.Wherein：The inner chamber of air inlet pipe 1 is pyramidal structure and is fixedly connected on the outside of diffuser 3, and quiet wheel cap 4 is fixedly connected
In the inner side of diffuser 3 and its inner side and the cooperation of the outer rim of impeller 5, diffuser 3 is fixedly connected with spiral case 2, the shape and structure of diffuser 3
Including two kinds of vaned diffuser and vaneless diffuser, closure 6 is located at the dorsal part of impeller 5 and is fixedly connected on spiral case 2.
In above-described embodiment, the impeller 5, using three-dimensional flow and semi-open type design structure, is single in the independent pump head
Only configure, and impeller linear velocity is less than 300m/s, can increase the width-diameter ratio of impeller 5 using relatively low linear velocity, blade contact gas
Area of passage it is larger, after spiral case 2 and the Aerodynamic optimization design of diffuser 3, the independent pump head is aspirated compared with Gao Zhen
The gas of empty level；Relatively low linear velocity declines air resistance simultaneously, efficiency is improved, extension sliding bearing life, reduction equipment
Maintenance cost, can also avoid the problems such as performance curve steepening, the efficient operating regime that occur turbine narrow.
Independent pump head vavuum pump described in this patent scheme is generally with simple in construction, aspiration vacuum level is high, flow is big, account for
The features such as ground space is small, can form -15kPa to -65kPa vacuum applied to paper making vacuum system, it is to avoid vacuum is unstable
Frequently disconnected paper phenomenon occurs caused by fixed, while the use cost of papermaking user's huge vacuum installations can be reduced, is also beneficial to
The safe operation of flat vavuum pump.This programme is mainly used in couch roll high vacuum case, pressure roller Gao Zhen in suction paper machine vacuum system
The position of the higher vacuums such as empty van requirement, from paper machine couch roll high vacuum case, the gas of pressure roller high vacuum case, into self-contained pump
Head vavuum pump through air inlet pipe 1 reach impeller 5, through impeller 5 do work after through spiral case 2, diffuser 3 then from spiral case 2 export discharge,
Reach the effect of aspiration vacuum；The speed end 7a of speedup part 7 rotating speed be 10000r/min to 20000r/min, independent pump head
The linear velocity of interior impeller 5, which is less than at 300m/s, air inlet pipe, can form -15kPa to -65kPa vacuum, applied to papermaking vacuum
During system, with less impeller size, the system of equipment can be not only reduced under the conditions of same vacuum and impeller linear velocity
This is caused, a series of impeller phenomenons such as strength problem, blade drawing crack, fracture caused by material cause are more avoided that.
Claims (4)
1. independent pump head vavuum pump, including the motor that connection coordinates（9）With speedup part（7）, motor（9）Pass through connection
Axle device（8）Speedup part（7）Low speed end（7b）Drive connection, it is characterised in that speedup part（7）Speed end（7a）Cantilever
Install by air inlet pipe（1）, spiral case（2）, diffuser（3）, quiet wheel cap（4）, impeller（5）, closure（6）The independent pump head constituted.
2. independent pump head vavuum pump as claimed in claim 1, it is characterised in that described air inlet pipe（1）Inner chamber is pyramidal structure
And it is fixedly connected on diffuser（3）Outside, the quiet wheel cap（4）It is fixedly connected on diffuser（3）Inner side and its inner side and impeller
（5）Outer rim coordinates, the diffuser（3）With spiral case（2）It is fixedly connected, the closure（6）Positioned at impeller（5）Dorsal part and fixation
It is connected to spiral case（2）On.
3. independent pump head vavuum pump as claimed in claim 1, it is characterised in that the impeller（5）Using three-dimensional flow and semi-open type
Design structure, is single only configuration in the independent pump head, and impeller linear velocity is less than 300m/s.
4. independent pump head vavuum pump as claimed in claim 1, it is characterised in that the diffuser（3）Shape and structure use leaf
Diffuser structure or vaneless diffuser structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720334595.3U CN206617340U (en) | 2017-03-31 | 2017-03-31 | Independent pump head vavuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720334595.3U CN206617340U (en) | 2017-03-31 | 2017-03-31 | Independent pump head vavuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206617340U true CN206617340U (en) | 2017-11-07 |
Family
ID=60235201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720334595.3U Expired - Fee Related CN206617340U (en) | 2017-03-31 | 2017-03-31 | Independent pump head vavuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206617340U (en) |
-
2017
- 2017-03-31 CN CN201720334595.3U patent/CN206617340U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Independent pump head vacuum pump Effective date of registration: 20221106 Granted publication date: 20171107 Pledgee: Zhejiang Xiaoshan Rural Commercial Bank Co.,Ltd. Xinjie sub branch Pledgor: HANGZHOU ZHENXING INDUSTRIAL PUMP MANUFACTURE Co.,Ltd. Registration number: Y2022330002946 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171107 |